Muscle Contractions Muscular Module 2

Question 1

what is a concentric muscle contraction

Answer 1

is an isotonic contraction where the muscle shortens, contracts and produces force to perform a movement
e.g. bicep in bicep curl

Question 2

what is a eccentric muscle contraction

Answer 2

is an isotonic contraction where the muscle lengthens as it contracts usually with the help of gravity (lowering)
e.g. quads lengthen during a squat

Question 3

what is an isometric muscle contraction

Answer 3

muscle contracts and no movement is produced (length of muscle stays the same) e.g. plank